JP2021011699A - Frame member and ceiling inspection port structure having the same - Google Patents

Abstract

To provide a frame member capable of maintaining excellent appearance of a peripheral part of an inspection port formed in a ceiling plate material and improving workability, and a ceiling inspection port structure including the frame member.SOLUTION: In a frame member 5, a lid support part 53 for supporting a lid member 4 for closing an inspection port 21 has a putty application surface 534 on which putty agent is spread and applied on the opposite side to a lid support surface 533. An application end defining projection 54 is provided on the putty application surface 534. The application end defining projection 54 is a part of the frame member 5 that defines an application end portion at the time of spreading and applying the putty agent. The application end defining projection 54 is provided at a free end 532 on the center side of the inspection port 21 of the lid support part 53 to protrude in a downward direction D1 from the putty application surface 534 toward an interior space S1 side.SELECTED DRAWING: Figure 2

Description

The present invention relates to a frame member provided along the opening edge of an inspection port formed in a ceiling plate material for inspecting the space behind the ceiling of a building, and a ceiling inspection port structure including the frame member.

In the ceiling structure of a building, it is known that an inspection port for inspecting the attic space is formed in the ceiling plate material that separates the indoor space and the attic space. The ceiling inspection port structure constructed corresponding to the peripheral portion of the inspection port includes a lid member that closes the inspection port and a frame member that supports the lid member. The frame member is provided along the opening edge of the inspection port.

In the above ceiling inspection port structure, a gap may occur between the opening end face of the inspection port and the frame member in the ceiling plate material. If such a gap is generated, the aesthetic appearance of the ceiling inspection port structure when viewed from the indoor space side is deteriorated. Therefore, while filling the gap with the putty agent, the putty agent is spread and applied over a predetermined range of the peripheral portion of the inspection port to form a putty layer, and the surface of the ceiling plate material on the indoor space side and the putty are formed. A cloth material or the like is attached so as to cover the layer to form a decorative layer. As a result, the aesthetic appearance of the ceiling inspection port structure can be improved.

By the way, in order to improve the aesthetic appearance of the ceiling inspection port structure, it is necessary to finish the putty layer on a smooth surface, so that the work of forming the putty layer requires the skill of the operator. Therefore, there is a demand for a technique capable of easily performing the work of forming the putty layer and improving the workability of the ceiling inspection port structure.

For example, Patent Document 1 discloses a technique that makes it possible to simplify the work of forming a putty layer at a ceiling parting edge portion. In the technique disclosed in Patent Document 1, a protrusion is provided on the lower plate portion of the ceiling parting edge, and the protrusion is used as a ruler when the putty agent is spread and applied, so that the work of forming the putty layer can be simplified. Is said to be.

Utility Model Registration No. 3047713

However, it is difficult to simply apply the technique disclosed in Patent Document 1 to the ceiling inspection port structure. That is, in the ceiling parting edge portion, there is no gap between the opening end face of the inspection port and the frame member, which is the target of filling with the putty agent in the ceiling inspection port structure. Therefore, when the technique disclosed in Patent Document 1 is applied to the ceiling inspection port structure, a protrusion defining the coating end portion at the time of spreading coating with the putty agent is provided at any position around the gap. I can't figure out what to do. If the protrusions are not provided at appropriate positions, there is a risk that the putty agent may protrude to the inspection port side when the putty agent is spread and applied using the protrusions as a mark. In this case, the aesthetic appearance of the peripheral portion of the inspection port is deteriorated.

The present invention has been made in view of such circumstances, and an object of the present invention is to make it possible to maintain an excellent aesthetic appearance of a peripheral portion of an inspection port formed on a ceiling plate material and to maintain workability. It is an object of the present invention to provide a frame member capable of improvement and a ceiling inspection port structure provided with the frame member.

The frame member according to one aspect of the present invention is provided along the opening edge of the inspection port formed in the ceiling plate material that separates the indoor space and the attic space, and is a plate-shaped lid member that closes the inspection port. It is a member that supports. This frame member extends from the above-mentioned mounting portion toward the indoor space side so as to face the mounting portion mounted on the ceiling plate material and the opening end surface of the inspection port in the ceiling plate material. A lid support surface facing the attic space that extends from the facing portion and the end of the end face facing portion on the indoor space side to the center side of the inspection port and supports the peripheral edge of the lid member, and the ceiling. A lid support portion having a putty coating surface facing the indoor space to which a putty agent covering the boundary between the open end surface and the end face facing portion of the plate material is spread and applied, and the inspection port of the lid support portion. It is provided with a coating end defining protrusion that projects from the putty coating surface toward the indoor space side at the end on the center side and defines the coating end at the time of spreading coating with the putty agent.

According to this frame member, a coating end defining protrusion that defines the coating end portion of the putty agent is provided on the putty coating surface on which the putty agent is spread and applied on the lid support portion that supports the lid member that closes the inspection port. .. As a result, in the work of spreading and applying the putty agent, the operator can spread and apply the putty agent by using the coating end specified protrusion as a mark of the coating end portion. Therefore, the spread application work of the putty agent can be simplified, and the workability can be improved. Further, in the frame member, the coating end defining protrusion is provided so as to project from the putty coating surface toward the indoor space side at the end portion on the center side of the inspection port of the lid support portion. As a result, the position of the coating end defining protrusion on the frame member becomes an appropriate position for defining the coating end portion of the putty agent. Therefore, when the putty agent is spread and applied using the application end specified protrusion as a mark, it is possible to prevent the putty agent from protruding to the inspection port side as much as possible. As a result, it is possible to maintain an excellent aesthetic appearance of the peripheral portion of the inspection port formed on the ceiling plate material.

In the above frame member, even if the putty contact surface to which the putty agent comes into contact with the coating end specified protrusion is inclined toward the center side of the inspection port toward the indoor space side. Good.

In this aspect, by setting the putty contact surface of the coating end regulation protrusion as an inclined surface, smooth finishing of the coating edge can be easily performed in the spread application of the putty agent using the coating edge regulation protrusion as a mark. It becomes possible.

In the frame member, the end face facing portion is arranged at the end portion on the indoor space side on the facing surface facing the opening end face, and is inclined so as to be separated from the opening end face toward the indoor space side. It may be configured to have a putty coating connecting surface that extends and is continuous with the putty coating surface.

In this aspect, the putty coating connecting surface connected to the putty coating surface of the lid support portion at the end face facing portion is a part of the facing surface forming a boundary portion covered with the putty agent between the end face facing portion and the open end surface of the ceiling plate material. .. By making the putty coating connecting surface an inclined surface, when the boundary portion is covered with the putty agent in response to the spread application of the putty agent along the putty coating surface, a step of the putty agent is generated at the boundary portion. This can be prevented as much as possible. Therefore, it is possible to finish the coating layer of the putty agent on a smooth surface.

In the frame member, the end face facing portion is parallel to the putty coating connecting surface at the end portion on the indoor space side, and extends toward the center side of the inspection port toward the indoor space side. It may be configured to have a lid support connecting surface connected to the lid support surface. At this time, the frame member is provided so as to project from the end of the end face facing portion on the ceiling space side to the center side of the inspection port with respect to the lid support connecting surface, and is supported by the lid support surface. Further, a regulating protrusion that regulates that the peripheral edge of the lid member is supported by the lid support connecting surface is provided.

In this aspect, the lid support connecting surface connected to the lid support surface of the lid support portion at the end surface facing portion is an inclined surface parallel to the putty coating connecting surface. For example, assume that the lid support connecting surface is not parallel to the putty coating connecting surface but is perpendicular to the lid support surface. In this case, the end portion on the indoor space side where the putty coating connecting surface and the lid support connecting surface are formed at the end face facing portion may be locally thinned and the strength may be reduced. Therefore, at the end of the end face facing portion on the indoor space side, the lid support connecting surface is an inclined surface parallel to the putty coating connecting surface, so that the strength of the end face facing portion, that is, the overall strength of the frame member is raised to a high level. Can be secured at. However, when the lid member supported by the lid support surface of the lid support portion rides on the lid support connecting surface which is an inclined surface, a gap is generated between the peripheral edge portion of the lid member and the lid support surface. The lid member tilts. Therefore, by providing the regulation protrusion portion that protrudes from the lid support connecting surface to the center side of the inspection port in the frame member, the peripheral edge portion of the lid member supported by the lid support surface is supported by the lid support connecting surface. regulate. As a result, it is possible to prevent the lid member from being supported by the lid support surface while riding on the lid support connecting surface, and to prevent the lid member from tilting.

In the above-mentioned frame member, the above-mentioned placing portion is sandwiched between the ceiling plate material and a base material arranged on the ceiling back space side with respect to the ceiling plate material and fixed by the fastening member. It may be configured to be placed on the ceiling plate material. Then, the frame member is provided so as to project from the regulation protrusion toward the ceiling space side, and positions the base material in a state where the above-mentioned mounting portion is sandwiched between the frame member and the ceiling plate material. It may be configured to further include a protrusion.

In this aspect, when the base material that sandwiches the mounting portion of the frame member with the ceiling plate material is fixed to the ceiling plate material by the fastening member, the base material is brought into contact with the positioning protrusion of the frame member. As a result, positioning can be easily performed, and workability can be improved.

In the ceiling inspection port structure according to another aspect of the present invention, an inspection port is formed, a ceiling plate material that separates the indoor space and the ceiling back space, a plate-shaped lid member that closes the inspection port, and an opening of the inspection port. While covering the boundary between the frame member provided along the edge and supporting the lid member, the end face facing portion of the frame member, and the opening end face of the inspection port in the ceiling plate material, the said A putty layer made of a putty agent that is spread and applied between the coated end-specified protrusion of the frame member and a predetermined position of the ceiling plate material, including the putty-coated surface of the lid support portion of the frame member. A decorative layer provided so as to cover the surface of the ceiling plate material on the indoor space side and the putty layer is provided.

According to this ceiling inspection port structure, the ceiling inspection port structure as a whole is excellent because it is provided with the above-mentioned frame member that enables the maintenance of the excellent aesthetic appearance of the peripheral portion of the inspection port formed on the ceiling plate material. Aesthetics can be realized.

According to the present invention, a frame member capable of maintaining an excellent aesthetic appearance of a peripheral portion of an inspection port formed on a ceiling plate material and improving workability, and a ceiling provided with the frame member. An inspection port structure can be provided.

It is a perspective view which shows the ceiling inspection port structure to which the frame member which concerns on one Embodiment of this invention is applied. It is sectional drawing of the ceiling inspection port structure. It is sectional drawing of the ceiling inspection port structure provided with the ceiling decoration layer of the modified example as the ceiling decoration layer covering the surface of the ceiling board material on the interior space side. It is a figure which shows the state which the frame member is attached to the ceiling board material, and is the perspective view seen from the room space side. It is a figure which shows the state which the frame member is attached to the ceiling board material, and is the perspective view seen from the ceiling space side. It is a perspective view which looked at the frame member from the room space side. It is a perspective view which looked at the frame member from the ceiling space side. It is a top view which looked at the frame member from the room space side. It is a top view of the frame member seen from the ceiling space side. It is sectional drawing of the frame member.

Hereinafter, the frame member and the ceiling inspection port structure according to the embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view showing a ceiling inspection port structure 1 to which a frame member 5 according to an embodiment of the present invention is applied. 2 and 3 are cross-sectional views of the ceiling inspection port structure 1. 4 and 5 show a state in which the frame member 5 is attached to the ceiling plate material 2 in the ceiling inspection port structure 1, FIG. 4 is a perspective view seen from the indoor space S1 side, and FIG. 5 is an attic. It is a perspective view seen from the space S2 side. The ceiling inspection port structure 1 according to the present embodiment is a structure that constitutes a part of the ceiling structure of the building B, and is an inspection port 21 formed in the ceiling plate material 2 for inspecting the ceiling space S2 of the building B. It is a structure constructed corresponding to the peripheral part of.

The ceiling inspection port structure 1 includes a ceiling plate material 2, a base material 3, a lid member 4, and a frame member 5. When the ceiling inspection port structure 1 is viewed from the indoor space S1 side, the frame member 5 cannot be visually recognized, but in FIG. 1, a part of the ceiling decoration layer 24 described later is cut out. A state in which a part of the frame member 5 is exposed is shown, and in FIG. 4, a state in which the frame member 5 is exposed before the ceiling decorative layer 24 is provided is shown.

The ceiling plate material 2 is a plate material that separates the indoor space S1 and the attic space S2, and an inspection port 21 is formed. The ceiling board material 2 is arranged in a horizontal state and is made of, for example, gypsum board. The inspection port 21 is provided so as to penetrate the ceiling plate material 2 in the thickness direction, and is an opening for inspecting the attic space S2 of the building B. The shape of the inspection port 21 is not particularly limited, but is, for example, a rectangular shape.

In the following description, the vertical direction and the horizontal direction are used for the direction relationship, and the direction parallel to the vertical direction from the ceiling space S2 toward the indoor space S1 is referred to as "downward D1". The direction from the indoor space S1 in the opposite direction toward the ceiling space S2 side is referred to as "upward direction D2". Further, the direction parallel to the horizontal direction from the opening end surface 211 of the inspection port 21 in the ceiling plate material 2 toward the center side of the inspection port 21 is referred to as "first direction D3", and the direction of the inspection port 21 in the opposite direction is referred to as "first direction D3". The direction from the center toward the opening end surface 211 side of the ceiling plate material 2 is referred to as "second direction D4".

The base material 3 is arranged on the ceiling back space S2 side with respect to the ceiling plate material 2, and is fixed to the ceiling plate material 2 with screws 33. As shown in FIG. 5, the base material 3 is arranged along the opening edge of the inspection port 21 on the surface of the ceiling plate material 2 on the ceiling back space S2 side. Regarding the arrangement of the base material 3 with respect to the ceiling plate material 2, four base materials 3 may be arranged corresponding to each of the four sides of the rectangular inspection port 21, or each of the two sides facing each other in the inspection port 21. Two base materials 3 may be arranged corresponding to. In the present embodiment, as shown in the example of FIG. 5, four base materials 3 are arranged corresponding to each of the four sides of the inspection port 21. The base material 3 is composed of, for example, a metal stud material having a C-shaped cross section extending along one side corresponding to the inspection port 21. The base material 3 extends from the flat lower surface portion 31 that abuts on the surface of the ceiling plate material 2 on the ceiling back space S2 side and the widthwise end portion of the lower surface portion 31 in the upward direction D2, with respect to the lower surface portion 31. It has a vertical side surface portion 32 (see FIG. 2). The screw 33 for fixing the base material 3 to the ceiling plate material 2 is an example of a fastening member, and other fastening members such as bolts, wood screws, and nails may be used instead of the screw 33. ..

The lid member 4 is a plate-shaped member that closes the inspection port 21. The lid member 4 is formed in a rectangular shape corresponding to the shape of the inspection port 21. The lid member 4 is made of, for example, gypsum board. Further, as shown in FIG. 2, a lid decorative layer 42 is provided on the surface of the lid member 4 on the indoor space S1 side via an adhesive layer 41. The lid decorative layer 42 is, for example, a layer made of a cloth material. The lid decorative layer 42 may be a layer formed by applying a paint to the lid member 4. The lid member 4 closes the inspection port 21 in a state of being supported by the frame member 5.

The frame member 5 is a frame-shaped member that supports the lid member 4 so that the lid member 4 can close the inspection port 21. The frame member 5 will be described with reference to FIGS. 6 to 10 in addition to FIG. 6 and 7 are perspective views of the frame member 5, FIG. 6 is a view of the frame member 5 from the indoor space S1 side, and FIG. 7 is a view of the frame member 5 from the ceiling space S2 side. Is. 8 and 9 are plan views of the frame member 5, FIG. 8 is a view of the frame member 5 from the indoor space S1 side, and FIG. 9 is a view of the frame member 5 from the ceiling space S2 side. Is. FIG. 10 is a cross-sectional view of the frame member 5.

As shown in FIGS. 6 and 7, the frame member 5 is formed in a rectangular frame shape having a rectangular opening 5A in the central portion corresponding to the shape of the inspection port 21. The frame member 5 is made of, for example, a hard synthetic resin. The hard synthetic resin is not particularly limited, and examples thereof include a hard vinyl chloride resin. The frame member 5 supports the lid member 4 in a state of being placed on the ceiling plate material 2 along the opening edge of the inspection port 21. In the present embodiment, the frame member 5 is placed on the ceiling plate material 2 by being sandwiched between the ceiling plate material 2 and the base material 3 along the opening edge of the inspection port 21, and in this state, Supports the lid member 4. As shown in FIGS. 8 and 9, in the frame member 5, four bar members corresponding to each of the four sides of the rectangular inspection port 21 are connected by four first connecting members 5B on the indoor space S1 side. At the same time, it is formed into a rectangular frame shape as a whole by being connected by four second connecting members 5C on the ceiling back space S2 side.

The frame member 5 includes a mounting portion 51, an end face facing portion 52, a lid support portion 53, a coating end regulation protrusion 54, a regulation protrusion 55, and a positioning protrusion 56. In the frame member 5, each portion of the mounting portion 51, the end face facing portion 52, the lid support portion 53, the coating end regulation protrusion 54, the regulation protrusion 55, and the positioning protrusion 56 is integrally formed.

The mounting portion 51 is a flat plate-shaped portion that constitutes the outermost peripheral portion of the frame member 5, and is mounted on the ceiling plate material 2 by being sandwiched between the ceiling plate material 2 and the base material 3. As shown in FIG. 2, the mounting portion 51 is arranged between the surface of the ceiling plate material 2 on the ceiling back space S2 side and the lower surface portion 31 of the base material 3, thereby forming the ceiling plate material 2 and the base material 3. It is sandwiched between. The frame member 5 is positioned by sandwiching the mounting portion 51 between the ceiling plate material 2 and the base material 3. The thickness T1 (FIG. 10) of the mounting portion 51 is set to a small value as much as possible within the range in which the strength of the frame member 5 is secured. The smaller the thickness T1 of the mounting portion 51, the smaller the degree of the gap generated between the ceiling plate material 2 and the lower surface portion 31 of the base material 3 due to the sandwiching of the mounting portion 51 (see FIG. 2). In the present embodiment, the thickness T1 of the mounting portion 51 is set to a value smaller than the thickness T2 of the end face facing portion 52 and the thickness T3 of the lid support portion 53 described later.

The end face facing portion 52 is a plate-shaped portion of the ceiling plate material 2 facing the opening end face 211 of the inspection port 21 in the frame member 5. As shown in FIG. 2, the end face facing portion 52 extends downward D1 from the mounting portion 51 toward the indoor space S1 side so as to face the opening end face 211 of the ceiling plate material 2. The end face facing portion 52 has a facing surface 523 facing the open end face 211 of the ceiling plate material 2.

The lid support portion 53 is a plate-shaped portion of the frame member 5 that supports the lid member 4. As shown in FIG. 2, the lid support portion 53 is provided so as to extend from the lower end portion 521 of the end face facing portion 52 on the indoor space S1 side toward the center side of the inspection port 21 in the first direction D3. The lid support portion 53 is connected to the lower end portion 521 of the end face facing portion 52 at the base end portion 531 on the second direction D4 side, and the end portion on the first direction D3 side (the end portion on the center side of the inspection port 21) is idle. The end is 532. The lid support portion 53 has a lid support surface 533 facing the ceiling space S2 that supports the peripheral edge portion of the lid member 4, and a putty coating surface 534 facing the indoor space S1 to which the putty agent is spread and applied. .. The putty agent is spread and applied to the putty coating surface 534 of the lid support portion 53 while covering the boundary portion 52S between the open end surface 211 of the ceiling plate material 2 and the facing surface 523 of the end surface facing portion 52. In the present embodiment, the end face facing portion 52 from the mounting portion 51 is provided so that the putty coating surface 534 of the lid support portion 53 and the surface of the ceiling plate material 2 on the indoor space S1 side are located on the same horizontal plane. The extension length in the downward direction D1 is set.

The coating end defining protrusion 54 is a portion constituting the innermost peripheral portion of the frame member 5, and is a protrusion defining the coating end portion at the time of spreading coating with the putty agent. The coating end defining protrusion 54 is provided at the free end portion 532 of the lid support portion 53 so as to project downward D1 from the putty coating surface 534 toward the indoor space S1 side.

As described above, on the putty coating surface 534 on which the putty agent is spread and applied on the lid support portion 53 that supports the lid member 4 that closes the inspection port 21, the coating end defining protrusion 54 that defines the coating end portion of the putty agent. Is provided. As a result, in the work of spreading and applying the putty agent, the operator can spread and apply the putty agent by using the coating end regulation protrusion 54 as a mark of the coating end portion. Therefore, the spread application work of the putty agent can be simplified, and the workability of the ceiling inspection port structure 1 can be improved. Further, in the frame member 5, the coating end defining protrusion 54 is provided so as to project downward D1 from the putty coating surface 534 toward the indoor space S1 side at the free end portion 532 of the lid support portion 53. As a result, the position of the coating end defining protrusion 54 on the frame member 5 becomes an appropriate position for defining the coating end portion of the putty agent. Therefore, when the putty agent is spread and applied using the coating end regulation protrusion 54 as a mark, it is possible to prevent the putty agent from protruding to the inspection port 21 side as much as possible. As a result, it is possible to maintain an excellent aesthetic appearance of the peripheral portion of the inspection port 21 formed on the ceiling plate material 2.

Further, as shown in FIG. 2, the putty contact surface 541 with which the putty agent comes into contact with the coating end defined protrusion 54 is directed toward the downward D1 on the indoor space S1 side, and is directed toward the downward D1 on the indoor space S1 side, and is in the first direction D3 on the center side of the inspection port 21. It is tilted toward. In this way, by making the putty contact surface 541 of the coating end regulation protrusion 54 an inclined surface, a smooth finish of the coating end can be achieved in the spread application of the putty agent using the coating edge regulation protrusion 54 as a mark. It can be done easily.

Further, as shown in FIG. 2, in the frame member 5, the end face facing portion 52 has a putty coating connecting surface 524 arranged at the lower end portion 521 of the facing surface 523 facing the opening end face 211 of the ceiling plate material 2. .. The putty coating connecting surface 524 extends inclined so as to be separated from the opening end surface 211 of the ceiling plate material 2 toward the downward direction D1 on the indoor space S1 side, and is an inclined surface connected to the putty coating surface 534 of the lid support portion 53. is there. The putty application connecting surface 524 connected to the putty application surface 534 of the lid support portion 53 in the end surface facing portion 52 forms a boundary portion 52S covered with the putty agent between the end surface facing portion 52 and the open end surface 211 of the ceiling plate material 2, of the facing surface 523. It is a part. By making the putty coating connecting surface 524 an inclined surface, when the boundary portion 52S is covered with the putty agent in response to the spread application of the putty agent along the putty coating surface 534, the putty agent at the boundary portion 52S. It is possible to prevent the occurrence of a step in the above as much as possible. Therefore, it is possible to finish the coating layer of the putty agent on a smooth surface.

Further, as shown in FIG. 2, the end face facing portion 52 has a lid support connecting surface 525 parallel to the putty coating connecting surface 524 at the lower end portion 521 on the indoor space S1 side. The lid support connecting surface 525 extends in the first direction D3 toward the center side of the inspection port 21 toward the downward direction D1 on the indoor space S1 side, and is an inclined surface connected to the lid support surface 533 of the lid support portion 53. As described above, the lid support connecting surface 525 connected to the lid support surface 533 of the lid support portion 53 in the end surface facing portion 52 is an inclined surface parallel to the putty coating connecting surface 524. For example, assume that the lid support connecting surface 525 is not parallel to the putty coating connecting surface 524 but is perpendicular to the lid support surface 533. In this case, the lower end portion 521 on which the putty coating connecting surface 524 and the lid support connecting surface 525 are formed on the end face facing portion 52 may be locally thinned to reduce the strength. Therefore, at the lower end portion 521 of the end face facing portion 52, the lid support connecting surface 525 is made an inclined surface parallel to the putty coating connecting surface 524, so that the strength of the end face facing portion 52, that is, the overall strength of the frame member 5 is increased. It can be secured at a high level.

Here, as shown in FIG. 2, the ceiling inspection port structure 1 connects the lid support portion 53 and the ceiling plate material 2 in addition to the ceiling plate material 2, the base material 3, the lid member 4, and the frame member 5. A joint tape 22, a putty layer 23 made of the putty agent, and a ceiling decoration layer 24 are further provided.

The joint tape 22 is a mesh-like adhesive tape that is attached over a predetermined range of the putty coating surface 534 of the lid support portion 53 and the surface of the ceiling plate material 2 on the indoor space S1 side. A putty agent is spread and applied on the joint tape 22. That is, after the joint tape 22 is attached over the predetermined range of the putty coating surface 534 of the lid support portion 53 and the surface of the ceiling plate material 2 on the indoor space S1 side, the spread coating operation with the putty agent is performed. .. Since the joint tape 22 has a mesh shape, it has a function of improving the wettability at the time of spreading application of the putty agent.

The putty layer 23 is a layer formed by spreading application of the putty agent. As described above, the putty agent covers the boundary portion 52S between the end face facing portion 52 and the open end surface 211 of the ceiling plate material 2, and is provided on the surface of the coated end defining protrusion 54 and the ceiling plate material 2 on the indoor space S1 side. Spread coating is applied to the predetermined position including the putty coating surface 534 of the lid support portion 53.

The ceiling decorative layer 24 is a decorative layer provided so as to cover the surface of the ceiling plate material 2 on the indoor space S1 side and the putty layer 23. In the example shown in FIG. 2, the ceiling decoration layer 24 is, for example, a layer made of a cloth material. The cloth material constitutes the ceiling decoration layer 24 by being attached so as to cover the surface of the ceiling plate material 2 on the indoor space S1 side and the putty layer 23. As in the example shown in FIG. 3, the ceiling decorative layer 24A may be formed by painting with a paint. In this case, the ceiling decorative layer 24A is formed by applying paint to the surface of the ceiling plate material 2 on the indoor space S1 side and the putty layer 23.

According to the ceiling inspection port structure 1 according to the present embodiment, the ceiling inspection port structure 1 is provided with the above-mentioned frame member 5 capable of maintaining an excellent aesthetic appearance of the peripheral portion of the inspection port 21 formed in the ceiling plate material 2. It is possible to realize an excellent aesthetic appearance of the mouth structure 1 as a whole.

Further, as described above, the frame member 5 includes a regulation protrusion 55 and a positioning protrusion 56 in addition to the mounting portion 51, the end face facing portion 52, the lid support portion 53, and the coating end regulation protrusion 54. There is.

The regulation protrusion 55 is a protrusion that restricts the peripheral edge of the lid member 4 supported by the lid support surface 533 of the lid support 53 from being supported by the lid support connecting surface 525 of the end face facing portion 52. As shown in FIG. 2, the regulation protrusion 55 is arranged in the first direction D3 from the upper end portion 522 of the end face facing portion 52 on the ceiling back space S2 side toward the center side of the inspection port 21 with respect to the lid support connecting surface 525. It is provided so as to protrude.

As described above, the lid support connecting surface 525 of the end face facing portion 52 is an inclined surface. When the lid member 4 supported by the lid support surface 533 of the lid support portion 53 rides on the lid support connecting surface 525 which is an inclined surface, between the peripheral edge portion of the lid member 4 and the lid support surface 533. There is a risk that a gap will be created and the lid member 4 will be tilted. Therefore, the lid member 4 supported by the lid support surface 533 is provided with the regulation protrusion 55 protruding in the first direction D3 from the lid support connecting surface 525 toward the center side of the inspection port 21 in the frame member 5. It is restricted that the peripheral edge portion is supported by the lid support connecting surface 525. As a result, it is possible to prevent the lid member 4 from being supported by the lid support surface 533 while riding on the lid support connecting surface 525, and to prevent the lid member 4 from tilting.

The positioning protrusion 56 is a protrusion that positions the base material 3 in a state where the mounting portion 51 is sandwiched between the ceiling plate material 2 and the ceiling plate material 2. As shown in FIG. 2, the positioning protrusion 56 is provided so as to project upward D2 from the regulation protrusion 55 toward the ceiling space S2 side. When the base material 3 that sandwiches the mounting portion 51 of the frame member 5 with the ceiling plate material 2 is fixed to the ceiling plate material 2 with the screws 33, the base material 3 is attached to the positioning protrusion 56 of the frame member 5. By bringing the side surface portions 32 into contact with each other, positioning can be easily performed. As a result, the workability of the ceiling inspection port structure 1 can be improved.

Next, the construction procedure of the ceiling inspection port structure 1 using the frame member 5 will be described. The construction of the ceiling inspection port structure 1 is carried out by an operator.

First, the operator allows the frame member 5 from the ceiling back space S2 side so that the mounting portion 51 comes into contact with the surface of the ceiling plate material 2 on the ceiling back space S2 side and the end face facing portion 52 is inserted into the inspection port 21. (Frame member placement process). As a result, the frame member 5 is arranged along the opening edge of the inspection port 21. At this time, the end face facing portion 52 faces the opening end face 211 of the ceiling plate material 2.

When the arrangement of the frame member 5 with respect to the ceiling plate material 2 is completed, the operator abuts the lower surface portion 31 on the surface of the ceiling plate material 2 on the ceiling back space S2 side and the mounting portion 51, and the side surface portion 32 is the positioning protrusion portion 56. The base material 3 is arranged so as to come into contact with the (base material arrangement step). By bringing the side surface portion 32 of the base material 3 into contact with the positioning protrusion 56 of the frame member 5 in this way, the base material 3 can be easily positioned. In this state, the operator rotates the screw 33 from the indoor space S1 side with a screwdriver or the like to form a through hole in the ceiling plate material 2 and screw the screw 33 into the lower surface portion 31 of the base material 3. (Base material fixing process). As a result, the base material 3 is fixed to the ceiling plate material 2 with screws 33, and the frame member 5 is sandwiched between the ceiling plate material 2 and the base material 3 via the mounting portion 51 (see FIG. 4). ). At this time, when viewed from the indoor space S1 side, the lid support portion 53 and the coating end defining protrusion 54 of the frame member 5 are exposed in the opening region of the inspection port 21.

Next, the operator attaches the joint tape 22 from the indoor space S1 side over a predetermined range of the putty coating surface 534 of the lid support portion 53 and the surface of the ceiling plate material 2 on the indoor space S1 side (tape application). Landing process). When the work of attaching the joint tape 22 is completed, the operator puts a putty agent on the joint tape 22 and covers the joint tape 22 between the coating end defining protrusion 54 and the predetermined position on the surface of the ceiling plate material 2 on the indoor space S1 side. Spread coating is performed including the putty coating surface 534 of the support portion 53 (putty coating step). The operator performs the work of spreading and applying the putty agent from the indoor space S1 side using a spatula or the like. As a result, the putty agent covers the boundary portion 52S between the end face facing portion 52 and the open end surface 211 of the ceiling plate material 2, and the putty layer 23 made of the putty agent is formed. In the work of spreading and applying the putty agent, the operator can spread and apply the putty agent by using the coating end regulation protrusion 54 as a mark of the coating end portion.

When the work of spreading and applying the putty agent is completed, the worker performs the work of providing the ceiling decorative layer 24 from the indoor space S1 side so as to cover the surface of the ceiling plate material 2 on the indoor space S1 side and the putty layer 23. (Decorative layer forming process).

When the work of forming the ceiling decorative layer 24 is completed, the operator arranges the lid member 4 so that the peripheral edge portion of the lid member 4 comes into contact with the lid support surface 533 of the lid support portion 53 (lid member arrangement step). As a result, the inspection port 21 of the ceiling plate material 2 is closed by the lid member 4. At this time, the regulation protrusion 55 regulates that the lid member 4 is in a state of riding on the lid support connecting surface 525, which is an inclined surface connected to the lid support surface 533. Therefore, it is possible to prevent the lid member 4 from being supported by the lid support portion 53 in an inclined state.

As described above, the ceiling plate material 2 is formed by sequentially performing the frame member arranging process, the base material arranging process, the base material fixing process, the tape attaching process, the putty application process, the decorative layer forming process, and the lid member arranging process. The ceiling inspection port structure 1 can be constructed corresponding to the peripheral portion of the inspection port 21 formed in.

1 Ceiling inspection port structure 2 Ceiling board material 21 Inspection port 211 Opening end face 22 Joint tape 23 Putty layer 24, 24A Ceiling decoration layer 3 Base material 33 Screws (fastening member)
4 Lid member 5 Frame member 51 Mounting part 52 End face facing part 523 Facing surface 524 Putty application connecting surface 525 Lid support connecting surface 53 Lid support part 533 Lid support surface 534 Putty application surface 54 Application end specified protrusion 541 Putty contact surface 55 Regulatory protrusion 56 Positioning protrusion S1 Indoor space S2 Attic space

Claims (6)

A frame member that is provided along the opening edge of an inspection port formed in a ceiling plate material that separates an indoor space and an attic space, and supports a plate-shaped lid member that closes the inspection port.
The mounting part to be mounted on the ceiling board material and
An end face facing portion extending from the previously described placing portion toward the indoor space side so as to face the opening end face of the inspection port in the ceiling plate material.
A lid support surface facing the attic space that extends from the end of the end face facing portion on the indoor space side to the center side of the inspection port and supports the peripheral edge of the lid member, and the opening of the ceiling plate material. A lid support portion having a putty coating surface facing the indoor space to which a putty agent covering the boundary between the end face and the end face facing portion is spread and applied.
At the end of the lid support portion on the center side of the inspection port, a coating end defining protrusion that projects from the putty coating surface toward the indoor space side and defines the coating end portion at the time of spreading coating with the putty agent, A frame member. The frame member according to claim 1, wherein the putty contact surface with which the putty agent comes into contact with the coated end defined protrusion is inclined toward the center side of the inspection port toward the indoor space side. The end face facing portion is arranged at the end portion on the indoor space side on the facing surface facing the opening end face, and extends so as to be separated from the opening end face toward the indoor space side, and the putty. The frame member according to claim 1 or 2, which has a putty coating connecting surface connected to the coating surface. The end face facing portion is parallel to the putty application connecting surface at the end portion on the indoor space side, extends toward the center side of the inspection port toward the indoor space side, and is connected to the lid support surface. Has a lid support connecting surface,
A peripheral edge of the lid member provided so as to project from the end of the end face facing portion on the ceiling space side to the center side of the inspection port from the lid support connecting surface and supported by the lid support surface. The frame member according to claim 3, further comprising a regulating protrusion that restricts the lid from being supported by the lid support connecting surface. The above-mentioned placing portion is placed on the ceiling plate material by being sandwiched between the ceiling plate material and a base material arranged on the ceiling back space side with respect to the ceiling plate material and fixed by a fastening member. Being done
Claimed to be further provided with a positioning protrusion that is provided so as to project from the regulation protrusion toward the ceiling space side and positions the base material in a state where the above-mentioned placement portion is sandwiched between the ceiling plate material and the ceiling plate material. Item 4. The frame member according to item 4. An inspection port is formed, and the ceiling board material that separates the indoor space from the attic space,
A plate-shaped lid member that closes the inspection port and
The frame member according to any one of claims 1 to 5, which is provided along the opening edge of the inspection port and supports the lid member.
While covering the boundary between the end face facing portion of the frame member and the opening end face of the inspection port of the ceiling plate material, the coating end defining protrusion of the frame member and a predetermined position of the ceiling plate material are described. A putty layer made of a putty agent spread and applied including the putty-applied surface of the lid support portion of the frame member,
A ceiling inspection port structure including a surface of the ceiling plate material on the indoor space side and a decorative layer provided so as to cover the putty layer.

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